RT Book T1 A comparative examination of the perceptions of juvenile probation officers and administrators concerning counseling and guidance practices in Polk county A1 Allen, Melvin LA Undetermined PP Ann Arbor, Mich. PB Univ. Microfilms Internat. YR 1983 UL https://krimdok.uni-tuebingen.de/Record/1083866303 K1 Hochschulschrift